P-164000477 9395P750 kVA / 900 kVA and 1000 kVA / 1100 kVA 47
Revision 002 User’s and Installation Guide
4.5 Field installed UPM (FI-UPM) installation
If installing a four-UPM model, install the FI-UPM using the instructions in the Eaton 9395P Field
Installed UPM Mechanical Installation Manual, listed in section 1.7 on page 9. After the FI-UPM is
installed, proceed to Section 4.6 if installing a battery system; otherwise, proceed to Section 4.7.
4.6 Battery system installation
If installing a customer-supplied battery system, install the battery system according to the battery and
battery system manufacturer’s instructions and all applicable codes and regulations.
After the battery system is installed, proceed to Section 4.7 if installing a distributed bypass tie cabinet;
otherwise, proceed to Section 4.6 to complete the wiring of the UPS and battery cabinet.
4.7 Distributed bypass tie cabinet installation
The tie cabinet must contain Module Output Breakers (MOBs) with dual auxiliary contacts for
control of the system. Without dual auxiliary MOBs, UPSs are not allowed to go to bypass
individually during servicing. All UPSs will go to bypass instead of just the UPS needing service,
decreasing critical load protection. With dual auxiliary MOBs, one UPS can be bypassed while
the remaining UPSs support the load as long as the remaining UPMs have the capacity to do so.
If installing a distributed bypass system, install the customer-supplied tie cabinet or distribution panel
according to the tie cabinet or distribution panel manufacturer’s instructions and all applicable codes
and regulations. After the tie cabinet is installed, proceed to Section 4.6 to complete the wiring of the
UPS.
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